Blues Chord Progressions

I → I → I → I → IV → IV → I → I → V → IV → I → V

The foundation of rock and roll. Twelve bars of pure groove that launched a million guitar solos.

i → iv → V

The minor key blues progression. Darker and more melancholic than standard blues, with a raw emotional edge.

I7 → I7 → I7 → I7 → IV7 → IV7 → I7 → I7 → V7 → IV7 → I7 → V7

The authentic 12-bar blues with dominant 7th chords on every change. The '7' quality is essential to the blues sound - that flat 7th creates the characteristic bluesy tension.